Mop



FIG. 1 is a front elevational view of a mop showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and

FIG. 6 is an enlarged perspective view of the head portion thereof. 

The ornamental design for a mop, as shown and described. 